Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1439531

Re: [PATCH v14 4/8] perf record: Introduce rec->overwrite_evlist for overwritable events

From Jiri Olsa <jolsa@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH v14 4/8] perf record: Introduce rec->overwrite_evlist for overwritable events
Date 2016-07-08 16:50 +0200
Message-ID <rSFgl-64x-19@gated-at.bofh.it> (permalink)
References <rSacx-2D8-3@gated-at.bofh.it> <rSacy-2D8-25@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On Thu, Jul 07, 2016 at 05:34:45AM +0000, Wang Nan wrote:

SNIP

> @@ -373,7 +402,23 @@ static int record__mmap_evlist(struct record *rec,
>  
>  static int record__mmap(struct record *rec)
>  {
> -	return record__mmap_evlist(rec, rec->evlist);
> +	int err;
> +
> +	err = record__create_overwrite_evlist(rec);
> +	if (err)
> +		return err;
> +
> +	err = record__mmap_evlist(rec, rec->evlist, false);
> +	if (err)
> +		return err;
> +
> +	if (!rec->overwrite_evlist)
> +		return 0;
> +
> +	err = record__mmap_evlist(rec, rec->overwrite_evlist, true);
> +	if (err)
> +		return err;
> +	return 0;

same here:
	return record__mmap_evlist(rec, rec->overwrite_evlist, true);

jirka

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

[PATCH v14 0/8] perf tools: Support overwritable ring buffer Wang Nan <wangnan0@huawei.com> - 2016-07-07 07:40 +0200
  [PATCH v14 5/8] perf record: Read from overwritable ring buffer Wang Nan <wangnan0@huawei.com> - 2016-07-07 07:40 +0200
  [PATCH v14 7/8] perf tools: Don't warn about out of order event if write_backward is used Wang Nan <wangnan0@huawei.com> - 2016-07-07 07:40 +0200
  [PATCH v14 8/8] perf tools: Add --tail-synthesize option Wang Nan <wangnan0@huawei.com> - 2016-07-07 07:40 +0200
  [PATCH v14 2/8] perf evlist: Introduce aux evlist Wang Nan <wangnan0@huawei.com> - 2016-07-07 07:40 +0200
  [PATCH v14 1/8] perf tools: Drop redundant evsel->overwrite indicator Wang Nan <wangnan0@huawei.com> - 2016-07-07 07:40 +0200
  [PATCH v14 4/8] perf record: Introduce rec->overwrite_evlist for overwritable events Wang Nan <wangnan0@huawei.com> - 2016-07-07 07:40 +0200
    Re: [PATCH v14 4/8] perf record: Introduce rec->overwrite_evlist for  overwritable events Jiri Olsa <jolsa@redhat.com> - 2016-07-08 16:50 +0200
    Re: [PATCH v14 4/8] perf record: Introduce rec->overwrite_evlist for  overwritable events Jiri Olsa <jolsa@redhat.com> - 2016-07-08 16:50 +0200
  [PATCH v14 3/8] perf tests: Add testcase for auxiliary evlist Wang Nan <wangnan0@huawei.com> - 2016-07-07 07:40 +0200
    Re: [PATCH v14 3/8] perf tests: Add testcase for auxiliary evlist Jiri Olsa <jolsa@redhat.com> - 2016-07-08 16:50 +0200
      Re: [PATCH v14 3/8] perf tests: Add testcase for auxiliary evlist "Wangnan (F)" <wangnan0@huawei.com> - 2016-07-11 05:30 +0200
    Re: [PATCH v14 3/8] perf tests: Add testcase for auxiliary evlist Jiri Olsa <jolsa@redhat.com> - 2016-07-08 16:50 +0200
    Re: [PATCH v14 3/8] perf tests: Add testcase for auxiliary evlist Jiri Olsa <jolsa@redhat.com> - 2016-07-08 16:50 +0200

csiph-web